{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "discover vulnerability", "arguments": ["vulnerable system version", "capabilities", "vulnerability", "discoverer", "vulnerable system", "vulnerable system owner", "supported platform", "time", "common vulnerabilities and exposures"]}], "input": "Ahead of April 's Patch Tuesday , Microsoft has released patches for the critical flaw , which affects Microsoft Malware Protection Engine , or mpengine.dll , the core of Windows Defender in Windows 10 ."}
{"discover vulnerability": []}